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Multiple Choice Quiz
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1
Which of the following is NOT a category of entities?
A)concept
B)place
C)object
D)relationship
E)event
2
An attribute that consists of other attributes is called:
A)extended attribute
B)element
C)compound attribute
D)simple attribute
E)none of the above
3
Any candidate key that is not selected to become the primary key is called:
A)the domain key
B)the entity key
C)the concatenated key
D)the substitution key
E)none of the above
4
A relationship that exists between the instances of the same entity is called:
A)reflexive
B)associative
C)identifying
D)recursive
E)non-identifying
5
An entity whose instances may inherit common attributes from its entity supertype is called:
A)generalization entity
B)non-specific entity
C)recursive entity
D)associative entity
E)none of the above
6
A technique that organizes data into groups to form non-redundant, stable, flexible, and adaptive entities is:
A)optimization
B)normalization
C)randomization
D)requirements analysis
E)data modeling
7
An entity is in the second normal form if:
A)values of nonprimary key attributes are dependent on the full primary key
B)all values of primary keys are independent of the nonprimary key attributes
C)you add additional nonkey attributes that are dependent on other nonkey attributes
D)values of nonprimary key attributes are not dependent on any other nonprimary key attributes
E)none of the above
8
Every faculty has one or more offices. This is an example of:
A)domain
B)cardinality
C)relationship
D)attribute
E)none of the above
9
In the relationship between course and faculty, the course entity would be
A)nonspecific
B)supertype
C)the child
D)the parent
E)none of the above
10
An attribute whose value can be calculated form other attributes is called:
A)dependent attribute
B)compound attribute
C)simple attribute
D)derived attribute
E)none of the above





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